Hakuo Academy was once a respected school where many students dreamed of being admitted. Now, its rival academy Seishikan is on a mission to assimilate all other schools, and Hakuo Academy is its next target. Supported by the fearsome Yasha clan, Seishikan students frequently visit Hakuo's campus to assault and forcibly convince their best students and athletes to transfer to Seishikan. Desperate to preserve their legacy, Hakuo Academy enlists the help of Kojirou Fuuma—the only member of the once-legendary Fuuma clan still living in their ancestral village. Kojirou will stop at nothing to defend Hakuo against the Yasha clan, whom the family has feuded with for generations. But will that be enough to stop Seishikan's aggression? [Written by MAL Rewrite]

Hakuo Gakuin used to be a prestigious high school, and famous for martial arts. However, because its rival school; Seishikan, has been cowardly luring it's superior students, Hakuo was going to decline. In order to recover from the situation, the acting principal of Hakuo; Hojo Himeko, sends Yagyu Ranko to the Fuma Village in search of the famous Fuma ninja clan for assistance. The leader of the Fuma sent Kojiro to Hakuo, there he faces the notorious Yasha clan who fights for Seishikan lead by Asuka Musashi. Soon Kojiro's comrades arrive and an all-out ninja war postponed for 500 years begins between the 2 clans. (Source: d-addicts)

Après avoir affronté les sbires de Chaos, Kojirô et Ryuma reviennent sur Terre où ils retrouvent les membres de leurs clans qui s'entretuent. Quelle fantastique puissance psychique peut donc être à la base de ces duels ? Si nos champions arrivent trop tard pour sauver leurs amis, pourront-ils encore les venger ? Encore faudrait-il stopper la barbarie du nouvel ordre adopté par le clan Fuma...